8 x 9 = 72
18 x 4 = 72
There are 11 multiples of 9 up to 100. 9 18 27 36 45 54 63 72 81 90 99
9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99.
36 and 72
36, 72.
Oh, isn't that just lovely? Let's take a moment to appreciate the multiples of 6 up to 72. So, if we start with 6 and keep adding 6 each time, we get 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, and finally 72. Each number is like a happy little tree in our mathematical forest. Just remember, there's no mistakes, only happy accidents in math and in painting.
18, 36, 54, 72, 90, 108, 126, 144, 162, 180, 198, 216, 234, 252, 270, 288.
1/9
72 and 144.
I presume you mean what are all the multiples of 9 up to 100 (and not what are all the multiples of 9, 10, 11, ..., 100 of which there are infinitely many): 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99.
18 and 18
24, 48, 72, 96.
18,36,54,72,90